/* =========================================================
   Daniele Laudani — Portfolio
   Shared stylesheet
   ========================================================= */

:root{
  --bg: #ffffff;
  --bg-rgb: 255,255,255;
  --fg: #000000;
  --rule: rgba(0,0,0,0.12);
  --rule-soft: rgba(0,0,0,0.08);
  --muted: rgba(0,0,0,0.55);
  --nav-pad-x: 48px;
  --nav-pad-y: 28px;
  --page-pad-x: 48px;
  --nav-height: 84px;
}

:root[data-theme="dark"]{
  --bg: #0a0a0a;
  --bg-rgb: 10,10,10;
  --fg: #ffffff;
  --rule: rgba(255,255,255,0.16);
  --rule-soft: rgba(255,255,255,0.1);
  --muted: rgba(255,255,255,0.55);
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior: smooth; }

html, body{ background: var(--bg); color: var(--fg); }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
}

::selection{ background: var(--fg); color: var(--bg); }
::-moz-selection{ background: var(--fg); color: var(--bg); }

body{
  font-family: 'Azeret Mono', monospace;
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

main{ flex: 1; }

a{ color: inherit; text-decoration: none; }

img{ max-width: 100%; display: block; }

/* ---------- NAVBAR ---------- */
.nav{
  position: sticky;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--nav-pad-y) var(--nav-pad-x);
  background: var(--bg);
  border-bottom: 1px solid transparent;
}

.nav__name{
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav__links{
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__links a{
  position: relative;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding-bottom: 3px;
}

.nav__links a::after{
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--fg);
  transition: width 0.25s ease;
}

.nav__links a:hover::after,
.nav__links a:focus-visible::after{ width: 100%; }

.nav__links a[aria-current="page"]::after{ width: 100%; }

.nav__links a:focus-visible{
  outline: 2px solid var(--fg);
  outline-offset: 4px;
}

/* ---------- ONE-PAGE SECTIONS ---------- */
.page-section{
  scroll-margin-top: var(--nav-height);
  border-top: 1px solid var(--rule);
}

/* ---------- HOME HERO ---------- */
.hero{
  position: relative;
  scroll-margin-top: var(--nav-height);
  min-height: calc(100vh - 84px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__dotgrid{
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--fg) 1px, transparent 1.2px);
  background-size: 26px 26px;
  opacity: 0.055;
  pointer-events: none;
}

.hero__content{ position: relative; text-align: center; padding: 0 24px; }

.hero__title{
  font-family: 'Azeret Mono', monospace;
  font-weight: 900;
  font-size: clamp(3.2rem, 15vw, 11.5rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
}

.hero__title[contenteditable="true"]{
  cursor: text;
  caret-color: var(--fg);
}

.hero__title[contenteditable="true"]:focus{
  outline: none;
}

.cursor{ display: inline-block; animation: blink 1s steps(1) infinite; }
@keyframes blink{ 50%{ opacity: 0; } }

.hero__meta{
  margin-top: 26px;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.55;
}

.hero__theme-toggle{
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
}

@media (prefers-reduced-motion: reduce){ .cursor{ animation: none; } }

/* ---------- SECTION PAGE HEADER ---------- */
.page-header{
  padding: 72px var(--page-pad-x) 56px;
  max-width: 1400px;
  margin: 0 auto;
}

.page-header__title{
  font-weight: 900;
  font-size: clamp(1.6rem, 7vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.page-header__desc{
  margin-top: 20px;
  max-width: 640px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- ABOUT ME ---------- */
.about{
  max-width: 1400px;
  margin: 0 auto;
  padding: 72px var(--page-pad-x) 80px;
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) 1.3fr;
  gap: 64px;
  align-items: center;
}

.about__title{
  font-weight: 900;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.about__subtitle{
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 32px;
}

.about__lead{
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.about__desc{
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--fg);
}

.about__image img{
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--rule-soft);
}

@media (max-width: 900px){
  .about{ grid-template-columns: 1fr; gap: 40px; padding: 48px 24px 56px; }
}

/* ---------- PROJECT BLOCKS ---------- */
.projects{
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--page-pad-x) 40px;
}

.project{
  padding: 20px 0;
  border-top: 1px solid var(--rule);
}

.project__grid{
  display: grid;
  grid-template-columns: minmax(240px, 0.85fr) 1.5fr;
  gap: 56px;
  align-items: start;
}

.project__title{
  margin: 0;
}

.project__header{
  display: block;
  width: 100%;
  background: none;
  border: none;
  margin: 0;
  padding: 12px 0;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.project__header:focus-visible{
  outline: 2px solid var(--fg);
  outline-offset: 4px;
}

.project__header-text{
  position: relative;
  display: inline-block;
  font-weight: 700;
  font-size: clamp(1.1rem, 2.4vw, 1.8rem);
  letter-spacing: 0.01em;
  text-transform: uppercase;
  padding-bottom: 4px;
}

.project__header-text::after{
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--fg);
  transition: width 0.25s ease;
}

.project__header:hover .project__header-text::after,
.project__header:focus-visible .project__header-text::after{ width: 100%; }

.project__collapse{
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s cubic-bezier(0.65, 0, 0.35, 1);
}

.project.is-open .project__collapse{
  grid-template-rows: 1fr;
}

.project__collapse-inner{
  overflow: hidden;
  min-height: 0;
}

.project__collapse-inner .project__grid{
  padding-top: 16px;
  padding-bottom: 24px;
}

.project__desc{
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--fg);
  margin-bottom: 24px;
}

.project__link{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--fg);
  padding-bottom: 2px;
  margin-bottom: 28px;
}

.project__link:hover{ opacity: 0.6; }

/* spec / notes list — echoes the underlined label rows from the source deck */
.specs{ margin-top: 8px; }

.specs__row{
  display: grid;
  grid-template-columns: minmax(120px, 45%) 1fr;
  gap: 12px 20px;
  padding: 9px 0;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 0.8rem;
}

.specs__row:first-child{ border-top: 1px solid var(--rule-soft); }

.specs__row dt{
  color: var(--muted);
  text-transform: none;
}

.specs__row dd{ font-weight: 500; }

/* image groups */
.project__images{
  display: grid;
  gap: 18px;
}

.project__images.cols-1{ grid-template-columns: 1fr; }
.project__images.cols-2{ grid-template-columns: repeat(2, 1fr); }
.project__images.cols-3{ grid-template-columns: repeat(3, 1fr); }

.project__images.gallery{
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.project__images.feature{
  grid-template-columns: 1.4fr 1fr;
}

.project__images.feature .feature__stack{
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.project__images figure{ display: flex; flex-direction: column; gap: 8px; }

.project__images img{
  width: 100%;
  height: auto;
  border: 1px solid var(--rule-soft);
}

.project__images figcaption{
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

@media (max-width: 900px){
  .project__grid{ grid-template-columns: 1fr; gap: 32px; }
  .project__images.cols-2,
  .project__images.cols-3{ grid-template-columns: repeat(2, 1fr); }
  .project__images.feature{ grid-template-columns: 1fr; }
  .project{ padding: 12px 0; }
  .project__header{ padding: 8px 0; }
}

@media (max-width: 560px){
  .project__images.cols-2,
  .project__images.cols-3{ grid-template-columns: 1fr; }
  .specs__row{ grid-template-columns: 1fr; }
}

/* ---------- FOOTER ---------- */
.footer{
  border-top: 1px solid var(--rule);
  padding: 56px var(--page-pad-x) 40px;
  margin-top: 40px;
}

.footer__inner{
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: end;
}

.footer__label{
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 18px;
}

.footer__contacts{ display: flex; flex-direction: column; gap: 4px; }

.footer__row{
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  padding: 7px 0;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 0.82rem;
  max-width: 380px;
}

.footer__row dt{ color: var(--muted); }

.footer__row dd:hover{ opacity: 0.6; }

.footer__copy{
  font-size: 0.72rem;
  color: var(--muted);
  text-align: right;
  white-space: nowrap;
}

/* ---------- THEME TOGGLE ---------- */
.theme-toggle{
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle__label{
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
  white-space: nowrap;
}

.theme-toggle__switch{
  position: relative;
  flex-shrink: 0;
  width: 40px;
  height: 20px;
  padding: 2px;
  background: none;
  border: 1px solid var(--fg);
  cursor: pointer;
}

.theme-toggle__thumb{
  display: block;
  width: 14px;
  height: 14px;
  background: var(--fg);
  transition: transform 0.25s ease;
}

.theme-toggle__switch[aria-pressed="true"] .theme-toggle__thumb{
  transform: translateX(18px);
}

.theme-toggle__switch:focus-visible{
  outline: 2px solid var(--fg);
  outline-offset: 4px;
}

@media (max-width: 700px){
  .nav{
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 22px 24px;
  }
  .nav__links{
    flex-wrap: wrap;
    gap: 14px 22px;
    align-self: flex-end;
    text-align: right;
  }
  .page-header{ padding: 48px 24px 40px; }
  .projects{ padding: 0 24px 24px; }
  .footer{ padding: 40px 24px 32px; }
  .footer__inner{ grid-template-columns: 1fr; gap: 20px; }
  .footer__copy{ text-align: left; margin-top: 4px; }
}

/* ---------- LIGHTBOX ---------- */
.project__images img{ cursor: zoom-in; }

.lightbox{
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 56px;
  background: rgba(var(--bg-rgb), 0.88);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease, backdrop-filter 0.4s ease;
}

.lightbox.is-visible{
  opacity: 1;
  visibility: visible;
}

.lightbox__img{
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  border: 1px solid var(--rule);
  box-shadow: 0 30px 80px rgba(0,0,0,0.4);
  transform: scale(0.94);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.lightbox.is-visible .lightbox__img{
  transform: scale(1);
}

.lightbox__close{
  position: fixed;
  top: 24px; right: 24px;
  width: 42px; height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--fg);
  color: var(--fg);
  font-family: inherit;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.lightbox__close:hover,
.lightbox__close:focus-visible{ opacity: 0.6; }

.lightbox__close:focus-visible{
  outline: 2px solid var(--fg);
  outline-offset: 4px;
}

body.lightbox-open{ overflow: hidden; }

@media (max-width: 700px){
  .lightbox{ padding: 24px; }
  .lightbox__close{ top: 16px; right: 16px; }
}